How do I tell my parents that I want to start dating?

I'm 22, female, Indian and an only child. In my culture, dating is not really a thing, although things are changing. My mom told me she didn't want me to start dating until I was at least 18 or done school (I can't remember what she said since it was a very long time ago). And she told me that she wants to know who I date and all that, which I'm ok with. It's really hard to talk to them about boy stuff because they get very...like they attack me (not literally, it's hard to explain). For example, I always talk about anything related to my female friends. But one time, I was talking about my guy friend and my mom goes, "why do you keep talking about him? Do you have something for him?". She never does that when I talk about my gal friends. In my culture, parents usually find a partner for their child and introduce them to different people and then the child decides who they want to marry. It's known as arranged marriage. In simple terms, parents set you up with someone they think might be compatible with their child and they are given a chance to get to know each other and asked if they want to marry each other. My parents have started thinking about looking for someone for me. My mom said to me that she has to look for someone for me because I didn't find anyone myself. But how could I have when she wouldn't let me date or get upset when I merely talked about a male friend? Anyways, I have secretly created an account on dating apps and websites. I don't feel good about doing it behind their back and it's keeping me from actually pursuing anyone. I really want to tell them that I want to start dating so that I can do it openly and not feel scared all the time. I would also have support such as letting them know my location when I go on dates so that I can be safe. I just feel really nervous to tell them. How do I tell my parents (I will tell my mom first) that I want to start dating?